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<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>Button</span>
  <span class="token attr-name"><span class="token namespace">android:</span>layout_width</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>match_parent<span class="token punctuation">&quot;</span></span>
  <span class="token attr-name"><span class="token namespace">android:</span>layout_height</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>wrap_content<span class="token punctuation">&quot;</span></span>
  <span class="token attr-name"><span class="token namespace">android:</span>text</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>调用web端方法<span class="token punctuation">&quot;</span></span>
  <span class="token attr-name"><span class="token namespace">android:</span>onClick</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>callJSFunction<span class="token punctuation">&quot;</span></span><span class="token punctuation">/&gt;</span></span>

  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>cn.sunday.hybridappdemo.views.X5WebView</span>
    <span class="token attr-name"><span class="token namespace">android:</span>id</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>@+id/web_view<span class="token punctuation">&quot;</span></span>
    <span class="token attr-name"><span class="token namespace">android:</span>layout_width</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>match_parent<span class="token punctuation">&quot;</span></span>
    <span class="token attr-name"><span class="token namespace">android:</span>layout_height</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>match_parent<span class="token punctuation">&quot;</span></span>
    <span class="token attr-name"><span class="token namespace">android:</span>background</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>@color/colorAccent<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>cn.sunday.hybridappdemo.views.X5WebView</span><span class="token punctuation">&gt;</span></span>
</code></pre></div><div class="custom-block tip"><p class="custom-block-title">注意</p> <p>原生端调用 web端的方法，这个方法必须是挂载到 web 端 window 对象下面的方法。</p></div> <p>在原生端通过<code>callJSFunction</code>方法调用web端的<code>onFunction</code>方法，并给web端传递<code>这是安卓调用JS方法成功，传递给web端的数据</code>做为原生端给web的数据，并通过弹窗显示web端方法被调用传给原生端的数据。</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token comment">// /app/src/main/java/cn/sunday/hybridappdemo/MainActivity.java</span>
<span class="token comment">/**
 * 调用 JS 中的方法：callJSFunction，并传递一个字符串
 */</span>
<span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">callJSFunction</span> <span class="token punctuation">(</span><span class="token parameter">View v</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    mWebView<span class="token punctuation">.</span><span class="token function">evaluateJavascript</span><span class="token punctuation">(</span><span class="token string">&quot;javascript:onFunction('这是安卓调用JS方法成功，传递给web端的数据')&quot;</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">ValueCallback</span><span class="token operator">&lt;</span>String<span class="token operator">&gt;</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        @Override
        <span class="token keyword">public</span> <span class="token keyword">void</span> <span class="token function">onReceiveValue</span><span class="token punctuation">(</span><span class="token parameter">String s</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
            AlertDialog<span class="token punctuation">.</span>Builder builder <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">AlertDialog<span class="token punctuation">.</span>Builder</span><span class="token punctuation">(</span>MainActivity<span class="token punctuation">.</span>this<span class="token punctuation">)</span><span class="token punctuation">;</span>
            builder<span class="token punctuation">.</span><span class="token function">setMessage</span><span class="token punctuation">(</span>s<span class="token punctuation">)</span><span class="token punctuation">;</span>
            builder<span class="token punctuation">.</span><span class="token function">setNegativeButton</span><span class="token punctuation">(</span><span class="token string">&quot;确定&quot;</span><span class="token punctuation">,</span> <span class="token keyword">null</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
            builder<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">show</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
        <span class="token punctuation">}</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre></div><p>web端代码</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token operator">&lt;</span><span class="token operator">!</span><span class="token constant">DOCTYPE</span> html<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>html lang<span class="token operator">=</span><span class="token string">&quot;en&quot;</span><span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>head<span class="token operator">&gt;</span>
  <span class="token operator">&lt;</span>meta charset<span class="token operator">=</span><span class="token string">&quot;UTF-8&quot;</span><span class="token operator">&gt;</span>
  <span class="token operator">&lt;</span>meta http<span class="token operator">-</span>equiv<span class="token operator">=</span><span class="token string">&quot;X-UA-Compatible&quot;</span> content<span class="token operator">=</span><span class="token string">&quot;IE=edge&quot;</span><span class="token operator">&gt;</span>
  <span class="token operator">&lt;</span>meta name<span class="token operator">=</span><span class="token string">&quot;viewport&quot;</span> content<span class="token operator">=</span><span class="token string">&quot;width=device-width, initial-scale=1.0&quot;</span><span class="token operator">&gt;</span>
  <span class="token operator">&lt;</span>title<span class="token operator">&gt;</span>Document<span class="token operator">&lt;</span><span class="token operator">/</span>title<span class="token operator">&gt;</span>
  <span class="token operator">&lt;</span>style<span class="token operator">&gt;</span>
    span <span class="token punctuation">{</span>
      color<span class="token operator">:</span> red<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
  <span class="token operator">&lt;</span><span class="token operator">/</span>style<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>head<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span>body<span class="token operator">&gt;</span>
  <span class="token operator">&lt;</span>div<span class="token operator">&gt;</span>安卓调用<span class="token constant">JS</span>方法是否成功？<span class="token operator">&lt;</span>span id<span class="token operator">=</span><span class="token string">&quot;res&quot;</span><span class="token operator">&gt;</span><span class="token operator">&lt;</span><span class="token operator">/</span>span<span class="token operator">&gt;</span><span class="token operator">&lt;</span><span class="token operator">/</span>div<span class="token operator">&gt;</span>
  <span class="token operator">&lt;</span>script<span class="token operator">&gt;</span>
    window<span class="token punctuation">.</span><span class="token function-variable function">onFunction</span> <span class="token operator">=</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token parameter">data</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      res<span class="token punctuation">.</span>textContent <span class="token operator">=</span> data
      <span class="token keyword">return</span> <span class="token string">'安卓调用JS方法成功，这是web端传递给安卓的数据'</span>
    <span class="token punctuation">}</span>
    <span class="token operator">&lt;</span><span class="token operator">/</span>script<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>body<span class="token operator">&gt;</span>
<span class="token operator">&lt;</span><span class="token operator">/</span>html<span class="token operator">&gt;</span>
</code></pre></div><p>在运行项目前还需需修改 /app/src/main/java/cn/sunday/hybridappdemo/constants/Constants.java 中 WEB_URL 地址，将WEB_URL设置为web项目的访问地址</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token keyword">package</span> <span class="token namespace">cn<span class="token punctuation">.</span>sunday<span class="token punctuation">.</span>hybridappdemo<span class="token punctuation">.</span>constants</span><span class="token punctuation">;</span>
<span class="token keyword">public</span> <span class="token keyword">class</span> <span class="token class-name">Constants</span> <span class="token punctuation">{</span>
    <span class="token keyword">public</span> <span class="token keyword">static</span> <span class="token keyword">final</span> <span class="token class-name">String</span> WEB_URL <span class="token operator">=</span> <span class="token string">&quot;http://192.168.0.100:8080/&quot;</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre></div><p>如果web端项目地址是http协议的，在安卓9.0及以上设备还需要对app进行安全设置</p> <p><code>/app/src/main/res/xml/network_security_config.xml</code></p> <div class="language-xml extra-class"><pre class="language-xml"><code><span class="token prolog">&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;</span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>network-security-config</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>domain-config</span> <span class="token attr-name">cleartextTrafficPermitted</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>true<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
        <span class="token comment">&lt;!-- 在这里加上访问 网页的IP地址 --&gt;</span>
        <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>domain</span> <span class="token attr-name">includeSubdomains</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>true<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>192.168.0.102<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>domain</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>domain-config</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>network-security-config</span><span class="token punctuation">&gt;</span></span>
</code></pre></div><p>在Android Studio中启动Demo程序后，界面如下。</p> <p><img src="" alt=""></p> <p>当我们点击调用web端方法的按钮时，界面结果如下</p> <p><img src="/assets/img/2.9bdb4b0b.png" alt=""></p> <p>可以看到，双端进行了完美的通信。</p> <h3 id="web端调用安卓端的方法"><a href="#web端调用安卓端的方法" class="header-anchor">#</a> web端调用安卓端的方法</h3> <p>上面我们实现了原生端调用web端的方法，并给web端传递参数。下面我们来说一下Web端调用原生端的方法。</p> <p>web端调用原生端方法，要在原生端构建 JSBridge 对象，提供的 JSBridge 字符串会被挂载到网页中的 window 对象下面。web端可以通过<code>window.这个JSBridge对象.原生端暴露出的方法</code>来调用原生端的方法。</p> <p>构建 JSBridge 对象：</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token comment">// /app/src/main/java/cn/sunday/hybridappdemo/views/X5WebView.java</span>

<span class="token keyword">private</span> <span class="token keyword">void</span> init <span class="token punctuation">(</span><span class="token class-name">Context</span> context<span class="token punctuation">)</span> <span class="token punctuation">{</span>
  <span class="token keyword">this</span><span class="token punctuation">.</span>mContext <span class="token operator">=</span> context<span class="token punctuation">;</span>

  <span class="token comment">/**
    * 基础配置
    */</span>
  <span class="token function">initWebViewSettings</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token function">initWebViewClient</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
  <span class="token function">initChromeClient</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>

  <span class="token comment">/**
    * 构建 JSBridge 对象
    *
    * 在web端可以通过window.AndroidJSBridge来拿到我们注入的JSBridge对象，从而调用安卓端提供给  web 的方法
    */</span>
  <span class="token function">addJavascriptInterface</span><span class="token punctuation">(</span>
          <span class="token keyword">new</span> <span class="token class-name">MyJaveScriptInterface</span><span class="token punctuation">(</span>mContext<span class="token punctuation">,</span> <span class="token keyword">this</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
          <span class="token string">&quot;AndroidJSBridge&quot;</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre></div><p>原生端暴露的被网页端调用的方法：</p> <div class="language-java extra-class"><pre class="language-java"><code><span class="token comment">// /app/src/main/java/cn/sunday/hybridappdemo/jsInterface/MyJaveScriptInterface.java</span>
<span class="token comment">/**
  *
  * window.AndroidJSBridge.androidTestFunction1('xxxx')
  * 调用该方法，APP 会弹出一个 Alert 对话框，
  * 对话框中的内容为 JavaScript 传入的字符串
  * @param str  android 只能接收基本数据类型参数
  *             ，不能接收引用类型的数据（Object、Array）。
  *             JSON.stringify(Object) -&gt; String
  */</span>
<span class="token annotation punctuation">@JavascriptInterface</span>
<span class="token keyword">public</span> <span class="token keyword">void</span> androidTestFunction1 <span class="token punctuation">(</span><span class="token class-name">String</span> str<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token class-name">AlertDialog<span class="token punctuation">.</span>Builder</span> builder <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">AlertDialog<span class="token punctuation">.</span>Builder</span><span class="token punctuation">(</span>mContext<span class="token punctuation">)</span><span class="token punctuation">;</span>
    builder<span class="token punctuation">.</span><span class="token function">setMessage</span><span class="token punctuation">(</span>str<span class="token punctuation">)</span><span class="token punctuation">;</span>
    builder<span class="token punctuation">.</span><span class="token function">setNegativeButton</span><span class="token punctuation">(</span><span class="token string">&quot;确定&quot;</span><span class="token punctuation">,</span> <span class="token keyword">null</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    builder<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">show</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token comment">/**
  * 调用该方法，方法会返回一个返回值给 javaScript 端
  * @return 返回值的内容为：&quot;调用安卓端方法，并返回数据给web端&quot;
  */</span>
<span class="token annotation punctuation">@JavascriptInterface</span>
<span class="token keyword">public</span> <span class="token class-name">String</span> androidTestFunction2 <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">return</span> <span class="token string">&quot;调用安卓端方法，并返回数据给web端&quot;</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre></div><p>web端代码：</p> <div class="language-html extra-class"><pre class="language-html"><code><span class="token doctype"><span class="token punctuation">&lt;!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>en<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>head</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>UTF-8<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>meta</span> <span class="token attr-name">http-equiv</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>X-UA-Compatible<span class="token punctuation">&quot;</span></span> <span class="token attr-name">content</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>IE=edge<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>meta</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>viewport<span class="token punctuation">&quot;</span></span> <span class="token attr-name">content</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>width=device-width, initial-scale=1.0<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>title</span><span class="token punctuation">&gt;</span></span>Document<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>title</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>style</span><span class="token punctuation">&gt;</span></span><span class="token style"><span class="token language-css">
    <span class="token selector">span</span> <span class="token punctuation">{</span>
      <span class="token property">color</span><span class="token punctuation">:</span> red<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
  </span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>style</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>head</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>body</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>button</span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>sendData()<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>调用安卓方法并给安卓传递数据<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>button</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>button</span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>onReceived()<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>调用安卓方法给并给web端传递数据<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>button</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>div</span><span class="token punctuation">&gt;</span></span>安卓传递过来的数据是<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>span</span> <span class="token attr-name">id</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>data<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>span</span><span class="token punctuation">&gt;</span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>div</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>script</span><span class="token punctuation">&gt;</span></span><span class="token script"><span class="token language-javascript">
    <span class="token keyword">function</span> <span class="token function">sendData</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      window<span class="token punctuation">.</span>AndroidJSBridge<span class="token punctuation">.</span><span class="token function">androidTestFunction1</span><span class="token punctuation">(</span><span class="token string">'这是web端给app传的数据-I come from web'</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span>

    <span class="token keyword">function</span> <span class="token function">onReceived</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token keyword">const</span> res <span class="token operator">=</span>  window<span class="token punctuation">.</span>AndroidJSBridge<span class="token punctuation">.</span><span class="token function">androidTestFunction2</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
      data<span class="token punctuation">.</span>textContent <span class="token operator">=</span> res
    <span class="token punctuation">}</span>
  </span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>script</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>body</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>html</span><span class="token punctuation">&gt;</span></span>
</code></pre></div><p>点击<code>调用安卓方法并给安卓传递数据</code>按钮</p> <p><img src="/assets/img/3.8b74f7b8.png" alt=""></p> <p>点击<code>调用安卓方法给并给web端传递数据</code>按钮</p> <p><img src="/assets/img/4.7ffab33c.png" alt=""></p> <p>从上面运行的结果来看，Web端调用安卓端的方法也是成功的。</p> <h2 id="ios端和web相互通信"><a href="#ios端和web相互通信" class="header-anchor">#</a> IOS端和web相互通信</h2> <p>IOS和安卓端还是有一些区别的：</p> <ul><li>IOS端可以直接接收一个对象数据</li> <li>IOS端无法直接提供一个返回值给web端，需要通过回调web方法的方式传递参数</li></ul> <p>IOS 端代码如下：</p> <div class="language-c extra-class"><pre class="language-c"><code><span class="token comment">// ViewController.m</span>
<span class="token comment">//</span>
<span class="token comment">//  ViewController.m</span>
<span class="token comment">//  ImoocHybridIOSNative</span>

<span class="token macro property"><span class="token directive-hash">#</span><span class="token directive keyword">import</span> <span class="token string">&quot;ViewController.h&quot;</span></span>
<span class="token macro property"><span class="token directive-hash">#</span><span class="token directive keyword">import</span> <span class="token expression"><span class="token operator">&lt;</span>WebKit<span class="token operator">/</span>WebKit<span class="token punctuation">.</span>h<span class="token operator">&gt;</span></span></span>
<span class="token macro property"><span class="token directive-hash">#</span><span class="token directive keyword">import</span> <span class="token string">&quot;Constants.h&quot;</span></span>

@interface <span class="token function">ViewController</span> <span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token operator">&lt;</span>WKNavigationDelegate<span class="token punctuation">,</span>WKUIDelegate<span class="token punctuation">,</span> WKScriptMessageHandler<span class="token operator">&gt;</span>

@<span class="token function">property</span> <span class="token punctuation">(</span>nonatomic<span class="token punctuation">,</span> strong<span class="token punctuation">)</span> WKWebView <span class="token operator">*</span>webView<span class="token punctuation">;</span>
@<span class="token function">property</span> <span class="token punctuation">(</span>nonatomic<span class="token punctuation">,</span> strong<span class="token punctuation">)</span> WKWebViewConfiguration <span class="token operator">*</span>wkWebViewConfiguration<span class="token punctuation">;</span>
@<span class="token function">property</span> <span class="token punctuation">(</span>nonatomic<span class="token punctuation">,</span> strong<span class="token punctuation">)</span> WKUserContentController <span class="token operator">*</span>wkUserContentController<span class="token punctuation">;</span>

@end

@implementation ViewController

<span class="token operator">-</span> <span class="token punctuation">(</span><span class="token keyword">void</span><span class="token punctuation">)</span>viewDidLoad <span class="token punctuation">{</span>
    <span class="token punctuation">[</span>super viewDidLoad<span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token comment">// Do any additional setup after loading the view, typically from a nib.</span>
    
    <span class="token punctuation">[</span>self initWebView<span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token operator">-</span> <span class="token punctuation">(</span><span class="token keyword">void</span><span class="token punctuation">)</span>initWebView <span class="token punctuation">{</span>
    <span class="token comment">//配置wkWebViewConfiguration</span>
    <span class="token punctuation">[</span>self wkConfiguration<span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token comment">//初始化webView</span>
    self<span class="token punctuation">.</span>webView <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">[</span>WKWebView alloc<span class="token punctuation">]</span> initWithFrame<span class="token operator">:</span>self<span class="token punctuation">.</span>view<span class="token punctuation">.</span>bounds configuration<span class="token operator">:</span>self<span class="token punctuation">.</span>wkWebViewConfiguration<span class="token punctuation">]</span><span class="token punctuation">;</span>
    self<span class="token punctuation">.</span>webView<span class="token punctuation">.</span>backgroundColor <span class="token operator">=</span> <span class="token punctuation">[</span>UIColor whiteColor<span class="token punctuation">]</span><span class="token punctuation">;</span>
    
    self<span class="token punctuation">.</span>webView<span class="token punctuation">.</span>navigationDelegate <span class="token operator">=</span> self<span class="token punctuation">;</span>
    self<span class="token punctuation">.</span>webView<span class="token punctuation">.</span>UIDelegate <span class="token operator">=</span> self<span class="token punctuation">;</span>
    
    NSURL <span class="token operator">*</span>url <span class="token operator">=</span> <span class="token punctuation">[</span>NSURL URLWithString<span class="token operator">:</span>WEB_URL<span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token comment">//    为保证演示效果设置缓存策越为不缓存</span>
    NSURLRequest <span class="token operator">*</span>request <span class="token operator">=</span> <span class="token punctuation">[</span>NSURLRequest requestWithURL<span class="token operator">:</span>url cachePolicy<span class="token operator">:</span>NSURLRequestReloadIgnoringCacheData timeoutInterval<span class="token operator">:</span><span class="token number">10</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token punctuation">[</span>self<span class="token punctuation">.</span>webView loadRequest<span class="token operator">:</span> request<span class="token punctuation">]</span><span class="token punctuation">;</span>
    
    <span class="token punctuation">[</span>self<span class="token punctuation">.</span>view addSubview<span class="token operator">:</span>self<span class="token punctuation">.</span>webView<span class="token punctuation">]</span><span class="token punctuation">;</span>
    
    <span class="token comment">//OC注册供JS调用的方法</span>
    <span class="token punctuation">[</span>self addScriptFunction<span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token operator">-</span> <span class="token punctuation">(</span><span class="token keyword">void</span><span class="token punctuation">)</span>wkConfiguration <span class="token punctuation">{</span>
    self<span class="token punctuation">.</span>wkWebViewConfiguration <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">[</span>WKWebViewConfiguration alloc<span class="token punctuation">]</span>init<span class="token punctuation">]</span><span class="token punctuation">;</span>
    
    WKPreferences <span class="token operator">*</span>preferences <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">[</span>WKPreferences alloc<span class="token punctuation">]</span> init<span class="token punctuation">]</span><span class="token punctuation">;</span>
    preferences<span class="token punctuation">.</span>javaScriptCanOpenWindowsAutomatically <span class="token operator">=</span> YES<span class="token punctuation">;</span>
    self<span class="token punctuation">.</span>wkWebViewConfiguration<span class="token punctuation">.</span>preferences <span class="token operator">=</span> preferences<span class="token punctuation">;</span>
    
<span class="token punctuation">}</span>

<span class="token macro property"><span class="token directive-hash">#</span><span class="token directive keyword">pragma</span> <span class="token expression">mark <span class="token operator">-</span>  OC注册供JS调用的方法，IOS 注入 jsbridge 对象名为 webkit</span></span>
<span class="token operator">-</span> <span class="token punctuation">(</span><span class="token keyword">void</span><span class="token punctuation">)</span>addScriptFunction <span class="token punctuation">{</span>
    self<span class="token punctuation">.</span>wkUserContentController <span class="token operator">=</span> <span class="token punctuation">[</span>self<span class="token punctuation">.</span>webView configuration<span class="token punctuation">]</span><span class="token punctuation">.</span>userContentController<span class="token punctuation">;</span>
    
    <span class="token punctuation">[</span>self<span class="token punctuation">.</span>wkUserContentController addScriptMessageHandler<span class="token operator">:</span>self name<span class="token operator">:</span>@<span class="token string">&quot;IOSTestFunction1&quot;</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token punctuation">[</span>self<span class="token punctuation">.</span>wkUserContentController addScriptMessageHandler<span class="token operator">:</span>self name<span class="token operator">:</span>@<span class="token string">&quot;IOSTestFunction2&quot;</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token macro property"><span class="token directive-hash">#</span><span class="token directive keyword">pragma</span> <span class="token expression">mark <span class="token operator">-</span>  Alert弹窗</span></span>
<span class="token operator">-</span> <span class="token punctuation">(</span><span class="token keyword">void</span><span class="token punctuation">)</span>webView<span class="token operator">:</span><span class="token punctuation">(</span>WKWebView <span class="token operator">*</span><span class="token punctuation">)</span>webView runJavaScriptAlertPanelWithMessage<span class="token operator">:</span><span class="token punctuation">(</span>NSString <span class="token operator">*</span><span class="token punctuation">)</span>message initiatedByFrame<span class="token operator">:</span><span class="token punctuation">(</span>WKFrameInfo <span class="token operator">*</span><span class="token punctuation">)</span>frame completionHandler<span class="token operator">:</span><span class="token punctuation">(</span><span class="token keyword">void</span> <span class="token punctuation">(</span><span class="token operator">^</span><span class="token punctuation">)</span><span class="token punctuation">(</span><span class="token keyword">void</span><span class="token punctuation">)</span><span class="token punctuation">)</span>completionHandler <span class="token punctuation">{</span>
    UIAlertController <span class="token operator">*</span> alertController <span class="token operator">=</span> <span class="token punctuation">[</span>UIAlertController alertControllerWithTitle<span class="token operator">:</span>@<span class="token string">&quot;提示&quot;</span> message<span class="token operator">:</span>message <span class="token operator">?</span> <span class="token operator">:</span> @<span class="token string">&quot;&quot;</span> preferredStyle<span class="token operator">:</span>UIAlertControllerStyleAlert<span class="token punctuation">]</span><span class="token punctuation">;</span>
    UIAlertAction <span class="token operator">*</span> action <span class="token operator">=</span> <span class="token punctuation">[</span>UIAlertAction actionWithTitle<span class="token operator">:</span>@<span class="token string">&quot;确认&quot;</span> style<span class="token operator">:</span>UIAlertActionStyleDefault handler<span class="token operator">:</span><span class="token operator">^</span><span class="token punctuation">(</span>UIAlertAction <span class="token operator">*</span> _Nonnull action<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token function">completionHandler</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token punctuation">[</span>alertController addAction<span class="token operator">:</span>action<span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token punctuation">[</span>self presentViewController<span class="token operator">:</span>alertController animated<span class="token operator">:</span>YES completion<span class="token operator">:</span>nil<span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token macro property"><span class="token directive-hash">#</span><span class="token directive keyword">pragma</span> <span class="token expression">mark <span class="token operator">--</span><span class="token operator">-</span> WKScriptMessageHandler <span class="token operator">--</span><span class="token operator">-</span></span></span>
<span class="token comment">//OC在JS调用方法做的处理</span>
<span class="token operator">-</span> <span class="token punctuation">(</span><span class="token keyword">void</span><span class="token punctuation">)</span>userContentController<span class="token operator">:</span><span class="token punctuation">(</span>WKUserContentController <span class="token operator">*</span><span class="token punctuation">)</span>userContentController didReceiveScriptMessage<span class="token operator">:</span><span class="token punctuation">(</span>WKScriptMessage <span class="token operator">*</span><span class="token punctuation">)</span>message
<span class="token punctuation">{</span>
    <span class="token comment">//前端主动JS发送消息，前端指令动作</span>
    <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token punctuation">[</span>@<span class="token string">&quot;IOSTestFunction1&quot;</span> isEqualToString<span class="token operator">:</span>message<span class="token punctuation">.</span>name<span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token punctuation">[</span>self IOSTestFunction1<span class="token operator">:</span>message<span class="token punctuation">.</span>body<span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span> <span class="token keyword">else</span> <span class="token keyword">if</span> <span class="token punctuation">(</span><span class="token punctuation">[</span>@<span class="token string">&quot;IOSTestFunction2&quot;</span> isEqualToString<span class="token operator">:</span>message<span class="token punctuation">.</span>name<span class="token punctuation">]</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token punctuation">[</span>self IOSTestFunction2<span class="token operator">:</span>message<span class="token punctuation">.</span>body<span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
<span class="token punctuation">}</span>

<span class="token macro property"><span class="token directive-hash">#</span><span class="token directive keyword">pragma</span> <span class="token expression">mark <span class="token operator">-</span> 与 Android 不同，IOS可以直接接收一个对象Object数据</span></span>
<span class="token operator">-</span> <span class="token punctuation">(</span><span class="token keyword">void</span><span class="token punctuation">)</span>IOSTestFunction1<span class="token operator">:</span><span class="token punctuation">(</span>id<span class="token punctuation">)</span>body <span class="token punctuation">{</span>
    NSDictionary <span class="token operator">*</span>dict <span class="token operator">=</span> body<span class="token punctuation">;</span>
    NSString <span class="token operator">*</span>msg <span class="token operator">=</span> <span class="token punctuation">[</span>dict objectForKey<span class="token operator">:</span>@<span class="token string">&quot;msg&quot;</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
    
    UIAlertController <span class="token operator">*</span> alertController <span class="token operator">=</span> <span class="token punctuation">[</span>UIAlertController alertControllerWithTitle<span class="token operator">:</span>@<span class="token string">&quot;提示&quot;</span> message<span class="token operator">:</span>msg preferredStyle<span class="token operator">:</span>UIAlertControllerStyleAlert<span class="token punctuation">]</span><span class="token punctuation">;</span>
    UIAlertAction <span class="token operator">*</span> action <span class="token operator">=</span> <span class="token punctuation">[</span>UIAlertAction actionWithTitle<span class="token operator">:</span>@<span class="token string">&quot;确认&quot;</span> style<span class="token operator">:</span>UIAlertActionStyleDefault handler<span class="token operator">:</span>nil<span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token punctuation">[</span>alertController addAction<span class="token operator">:</span>action<span class="token punctuation">]</span><span class="token punctuation">;</span>
    <span class="token punctuation">[</span>self presentViewController<span class="token operator">:</span>alertController animated<span class="token operator">:</span>YES completion<span class="token operator">:</span>nil<span class="token punctuation">]</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>

<span class="token macro property"><span class="token directive-hash">#</span><span class="token directive keyword">pragma</span> <span class="token expression">mark <span class="token operator">-</span> 调用该方法，回调 web 端 onFunctionIOS 方法，并传递字符串</span></span>
<span class="token operator">-</span> <span class="token punctuation">(</span><span class="token keyword">void</span><span class="token punctuation">)</span>IOSTestFunction2<span class="token operator">:</span><span class="token punctuation">(</span>id<span class="token punctuation">)</span>body <span class="token punctuation">{</span>
    
    <span class="token punctuation">[</span>self<span class="token punctuation">.</span>webView evaluateJavaScript<span class="token operator">:</span>@<span class="token string">&quot;onFunctionIOS('IOSTestFunction2方法执行完成')&quot;</span> completionHandler<span class="token operator">:</span><span class="token operator">^</span><span class="token punctuation">(</span>id result<span class="token punctuation">,</span> NSError <span class="token operator">*</span> _Nullable error<span class="token punctuation">)</span> <span class="token punctuation">{</span>
        
        <span class="token function">NSLog</span><span class="token punctuation">(</span>@<span class="token string">&quot;%@&quot;</span><span class="token punctuation">,</span> result<span class="token punctuation">)</span><span class="token punctuation">;</span>
        
    <span class="token punctuation">}</span><span class="token punctuation">]</span><span class="token punctuation">;</span>
    
<span class="token punctuation">}</span>
@end
</code></pre></div><p>Web 端代码如下：</p> <div class="language-html extra-class"><pre class="language-html"><code><span class="token doctype"><span class="token punctuation">&lt;!</span><span class="token doctype-tag">DOCTYPE</span> <span class="token name">html</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>html</span> <span class="token attr-name">lang</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>en<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>head</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>meta</span> <span class="token attr-name">charset</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>UTF-8<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>meta</span> <span class="token attr-name">http-equiv</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>X-UA-Compatible<span class="token punctuation">&quot;</span></span> <span class="token attr-name">content</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>IE=edge<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>meta</span> <span class="token attr-name">name</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>viewport<span class="token punctuation">&quot;</span></span> <span class="token attr-name">content</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>width=device-width, initial-scale=1.0<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>title</span><span class="token punctuation">&gt;</span></span>Document<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>title</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>style</span><span class="token punctuation">&gt;</span></span><span class="token style"><span class="token language-css">
    <span class="token selector">div</span> <span class="token punctuation">{</span>
      <span class="token property">margin-top</span><span class="token punctuation">:</span> 100px<span class="token punctuation">;</span>
    <span class="token punctuation">}</span>
  </span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>style</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>head</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>body</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>div</span><span class="token punctuation">&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>button<span class="token punctuation">&quot;</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>调用IOS端方法1并传递参数<span class="token punctuation">&quot;</span></span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>invokeIOSFn1()<span class="token punctuation">&quot;</span></span><span class="token punctuation">/&gt;</span></span>
    <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>input</span> <span class="token attr-name">type</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>button<span class="token punctuation">&quot;</span></span> <span class="token attr-name">value</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>调用IOS端方法2并传递参数<span class="token punctuation">&quot;</span></span> <span class="token attr-name">onclick</span><span class="token attr-value"><span class="token punctuation attr-equals">=</span><span class="token punctuation">&quot;</span>invokeIOSFn2()<span class="token punctuation">&quot;</span></span><span class="token punctuation">/&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>div</span><span class="token punctuation">&gt;</span></span>
  <span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>script</span><span class="token punctuation">&gt;</span></span><span class="token script"><span class="token language-javascript">
    <span class="token comment">// 调用IOS端方法并传递参数</span>
    <span class="token keyword">function</span> <span class="token function">invokeIOSFn1</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token comment">// window.webkit.messageHandlers 是固定写法</span>
      <span class="token keyword">const</span> obj <span class="token operator">=</span> <span class="token punctuation">{</span>
        <span class="token string">'msg'</span><span class="token operator">:</span> <span class="token string">'来自web端的数据'</span>
      <span class="token punctuation">}</span>
      window<span class="token punctuation">.</span>webkit<span class="token punctuation">.</span>messageHandlers<span class="token punctuation">.</span>IOSTestFunction1<span class="token punctuation">.</span><span class="token function">postMessage</span><span class="token punctuation">(</span>obj<span class="token punctuation">)</span>
    <span class="token punctuation">}</span>

    <span class="token keyword">function</span> <span class="token function">invokeIOSFn2</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      window<span class="token punctuation">.</span>webkit<span class="token punctuation">.</span>messageHandlers<span class="token punctuation">.</span>IOSTestFunction2<span class="token punctuation">.</span><span class="token function">postMessage</span><span class="token punctuation">(</span><span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span>

    <span class="token comment">// IOS端回调Web端方法</span>
    window<span class="token punctuation">.</span><span class="token function-variable function">onFunctionIOS</span> <span class="token operator">=</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token parameter">str</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token function">alert</span><span class="token punctuation">(</span>str<span class="token punctuation">)</span>
      <span class="token keyword">return</span> <span class="token string">'执行完成'</span>
    <span class="token punctuation">}</span>
  </span></span><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>script</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>body</span><span class="token punctuation">&gt;</span></span>
<span class="token tag"><span class="token tag"><span class="token punctuation">&lt;/</span>html</span><span class="token punctuation">&gt;</span></span>
</code></pre></div><p>点击 <code>调用IOS端方法1并传递参数</code> 按钮，运行结果如下：</p> <p><img src="" alt=""></p> <p>点击 <code>调用IOS端方法2并传递参数</code> 按钮，运行结果如下</p> <p><img src="/assets/img/6.1ed31994.png" alt=""></p> <h2 id="安卓、ios和web端双向通讯的对比"><a href="#安卓、ios和web端双向通讯的对比" class="header-anchor">#</a> 安卓、IOS和web端双向通讯的对比</h2> <p>相同点：</p> <ul><li>都是通过WebView来完成网页的加载。</li> <li>都是通过向window注入对象的方式，来提供被Web端调用的方法。</li> <li>都可以直接调用Web端挂载到window上的方法，并且都可以向被调用的函数传入参数和接收函数返回的内容。</li></ul> <p>不同点：</p> <ul><li>注入对象的不同。安卓端可以提供注入的对象名，IOS端固定为webkit。</li> <li>JS调用native的方式不同。安卓端可以直接获取注入对象，调用方法；IOS端固定写法(window.webkit.messageHandlers.方法名.postMessage(入参对象))</li> <li>传递数据的格式不同。安卓端只能接收基本数据类型数据；IOS端可以接收任意数据类型数据。</li> <li>返回值不同。安卓端可以直接接收返回值。IOS端没有办法直接获取返回值，需要通过回调一个Web端函数的方式。</li></ul> <p>参考：</p> <p><a href="https://developer.android.google.cn/guide/webapps/webview" target="_blank" rel="noopener noreferrer">在 WebView 中编译 Web 应用<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <p><a href="https://blog.csdn.net/u013983033/article/details/88234403" target="_blank" rel="noopener noreferrer">低版本xcode打开高版本xcode项目:incompatible project version错误<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <p><a href="https://blog.csdn.net/yanhaijunyan/article/details/105271519" target="_blank" rel="noopener noreferrer">A build only device cannot be used to run this target异常<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <p><a href="https://blog.csdn.net/wks310/article/details/99851776" target="_blank" rel="noopener noreferrer">低版本Mac OS安装合适xcode的方法<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <p><a href="https://developer.apple.com/download/more/" target="_blank" rel="noopener noreferrer">低版本 Xcode 下载<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p></div> <footer class="page-edit"><!----> <!----></footer> <div class="page-nav"><p class="inner"><!----> <span class="next"><a href="/front/混合开发/02.html">
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